複選題11. 植物細胞壁的成分會因其細胞的種類與功能有所不同，下列相關敘述何者正確？ (A)植物細胞的細胞壁大都含有纖維素(cellulose)與半纖維素(hemicellulose) (B)薄壁與厚角細胞的細胞壁含有果膠質，厚壁細胞則大都不含 (C)成熟之管胞與導管的細胞壁含有木質素(lignin)，其壁孔內之壁膜(pit membrane)則大都不含 (D)成熟之葉片表皮細胞含有角質(cutin)與蠟質，根部表皮細胞則大都不含 (E)內皮細胞的卡氏帶含有木栓質，該細胞的其它部分細胞壁則大都不含。

複選題
11. 植物細胞壁的成分會因其細胞的種類與功能有所不同，下列相關敘述何者正確？
(A)植物細胞的細胞壁大都含有纖維素(cellulose)與半纖維素(hemicellulose)
(B)薄壁與厚角細胞的細胞壁含有果膠質，厚壁細胞則大都不含
(C)成熟之管胞與導管的細胞壁含有木質素(lignin)，其壁孔內之壁膜(pit membrane)則大都不含
(D)成熟之葉片表皮細胞含有角質(cutin)與蠟質，根部表皮細胞則大都不含
(E)內皮細胞的卡氏帶含有木栓質，該細胞的其它部分細胞壁則大都不含。

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統計： A(19), B(10), C(17), D(21), E(19) #3233832

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B1 · 2025/10/25

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1. 題目解析本題的目的是考查學生對植...

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5. Humans have harmless E. coli strains that reside in the intestines. O157:H7 is an E. coli strain reported to cause several food poisoning deaths. Evidence suggests that the virulence of O157:H7 is caused by genes from a virus that infects bacteria. Considering this evidence, which of the following statements most likely explains how the O157:H7 population acquired the genetic variation that distinguishes it from the harmless E. coli strains? (A) The virus entered the bacterial cell, allowing the bacteria's cellular machinery to create new viruses. (B) Viral envelope proteins bound receptors on the bacteria, allowing the viral genetic material to enter the cytoplasm and be translated into proteins that increased that bacterium's virulence. (C) The virus entered the cell and reassorted to acquire specific genes from the bacteria to increase the virulence of the virus. (D) The virus infected the bacterium, and the bacterial population replicated with a copy of the phage genome in each new bacterium.

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